Hebrews 9:17
because a testament has no effect till after the demise: it not being in force while the testator is alive.
Galatians 3:15
Brethren, I speak according to the practice of men; contracts between men, when once ratified, cannot be disannulled or altered afterwards by any man.
John 14:27
I bid you farewell! I give you my last farewell; but I do not give it out of common formality: don't be concern'd for me, or apprehensive for your selves.
Treasury of Scripture Knowledge
Summary
For a testament is of force after men are dead: otherwise it is of no strength at all while the testator liveth.
General references
Bible References
General references
John 14:27
I bid you farewell! I give you my last farewell; but I do not give it out of common formality: don't be concern'd for me, or apprehensive for your selves.